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check if filename exits before starting server #626

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6 changes: 6 additions & 0 deletions zndraw/cli.py
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
import dataclasses
import datetime
import os
import pathlib
import typing as t

import typer
Expand Down Expand Up @@ -166,6 +167,11 @@ def main(

env_config.save_to_env()

if remote is None and rev is None:
if not pathlib.Path(filename).exists():
typer.echo(f"File {filename} does not exist.")
raise typer.Exit(code=1)

if standalone and url is None:
if env_config.FLASK_STORAGE.startswith("znsocket"):
# standalone with redis would assume a running instance of redis
Expand Down
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